Sash and door lock



E. J. KINGWILL SASH AND DOOR LOCK Feb. 9,1926. 1,572,608

Filed July 25, 1924 Patented Feb. 9, 1926.

UNITED STATES PATENT OFFlCE.

EDVIARD J'. KINGWILL, OF SANTA MONICA, CALIFORNIA, ASSIGNOR OF ONE-HALF TO CHARLES G. KINGVTILL, OF I-IAIvIMOND, INDIANA.

SASH AND DOOR LOCK.

Application filed July 25, 1924. Serial No. 728,123.

To all w limit it may concern Be it known that I, EDWARD J. KINGWILL,

a. cheap, simple and durable device adapted to be mounted upon one of a pair of sliding window sashes or upon a door which will frictionally hold the sash or door upon which it is mounted, in a desired position.

It is another object of the invention to provide a device adapted to be mountedupon one of a pair of sliding window sashes such that said window sashes may be held in open position but cannot be opened fur ther from the outside thereof.

It is a further object of the invention to provide a device adapted to be mounted upon a door and which will frictionally hold the door in partly open position, but which will prevent further opening movement thereof.

lVith the foregoing and other objects in view which will be made manifest in the following detailed description and specifically poin ed out in the appended claims, referonce is had to the accompanying drawing for an illustrated embodiment of the preferred form of the invention, wherein:

Fig. 1, is a partial perspective view of a pair of sliding window sashes, upon which the improved locking device is mounted.

Fig. 2, is a vertical section taken through the window sashes, shown in Fig. 1.

Fig. 3, is a top plan view of the improved sash and door lock. 1

Fig. 4, is a vertical section, taken substan-,

through screws 17, for mounting the device. Upon the back of the base plate 10, is formed an upstanding shoulder 18, in which is formed a groove 19, for a purpose hereinafter to be more fully described.

A pintle 20, herein shown as being in the form of a bolt is screwed into the base plate 10, by means of threads 21. On the pintle 20, is slidably mounted an engaging member 22, having an enlarged head 23, and a coil spring 24, coiling about the pintle20. The engaging member is provided with an elongated slot 25, to permit up and down sliding movement of the engaging member 22, upon the pintle 20, or forward and backward movement upon such pintle. Upon the underside of the engaging member 22, is formed a groove 26, adapted to receive the extension 27, of the coil spring 24, sothat the coil spring 24, servesto urge the engag ing member 22,- into uppermostposition and to urge the engaging member toward, the rear side 18; A handle 28,-is' also pivoted upon the pintle 20, above the engaging member 22, and is provided with a depending portion 29, movable within a groove 19, and

which engages a cam face 30, on the rear of i the engaging member 22. WVhen the handle 28, is in the position shown in Fig. 3, the engaging member 22, assumes the position substantially as that shown in Fig. 4, that is, with the spring 24, urging the engaging member against the handle 28, and rearwardly and into its rearmost position against the depending portion 29, of the handle 28. Upon the handle 28, being swung as indicated by the arrow A in'Fig. 3, the engagement of the depending portion 29, upon the cam face 30, will cause the engaging member 22, to be shifted forward upon the pintle 20, against the action of the eittension 27, of the coil spring 24. This brings the enlarged head 28, of the engaging member, which is provided with a rubber covering 32, into engagement with the stile of the sash S, as the device is mounted upon the lowermost sash S shown in Figures 1 and 2.

Because of the shape of the head 23, which is similar to a parallelogram in cross section, the sash S upon which the device is mounted, may be brought dowmvardly from the position shown in Fig. 2, or into closed position. This may be done by overcoming the friction of the engagement of the'rubber cover 32, against the sash S, as

clearlyshown in Fig. 5, where the'device is illustrated as being mounted upon a door D. Upon the door being forced in the direction indicated, the rubber covcr32, engages upon the floor F causingthe enlarged head 23, to wedge against the floor. That is, the engaging member 22, slides upon the pintle 20, and moves about the cam face 30, as a center toward the doorD, thereby com pressing the spring 24. This movement tends' tourge the head-'23, into a tighter or firmer engagement'with the floor F, and such engagement will constantly increase as long as the door is attempted to be forced open, The same action occurs between 'the device and the window sash S, when the lock is mounted upon a window.

From the-above it willbe seen that animproved sash or door lockis provided which will frfctionally engage a surface and WhiCllWlllPGliHit movement of sucli surface with respectto the lock in one direction, providing the friction of engagement is overcome and which will positively pre vent movement of such surface in the op-- posite direction with respect to the lock.

It is to be understood that various changes in the details of construction may movement of said surface relatively to said lock will cause said engaging member to pivot about its opposite end and wedge against said surface.

2. A sash ordoor lock, comprising a. base member, a'pintle secured upon said base, member,- a handle plvotally mounted uponthe free end of said pintle, an engaging member slidable upon saidpintle, a spring disposed beneath said engaging member and urging it into uppermost and rearmostposition with respect to saidbasemember, a

projection founded upon said handle and adapted to engage a cam face upon said engaging member whereby iiioveinent'of said handle will produce forward movement of said engaging member.

8. ASflSlI and door lock iiicluding an engaging member slidable' between a pair of tends, meansfor preventing rotation of'said engaging member upon said pintle, spring IDGRHS'CliISPOSGCl about said pintle adapted to urge said engaging member into an inclined position, and a handle pivoted upon" said pintle adapted upon swinging inoveinentto' force said engaging member forwardly in inclined position, so that theengagingaendofsaid engaging member may engage upon a surface, whereby movement of said"sur= face relatively to said lock will cause said i engaging member to pivot upon its end opposite the engaging end and wedge against said surface.

5. A sash and door lock comprising a base member having upstanding sides, a pintle upon the base member betweenthesides,

' a slotted engaging member positioned b e' tween said sides with the pintle extending through the slot therein, a handle pivoted upon saidipintle, there being a' cam surfaceupon said engaging member oiigageable by a portion of the handle, whereby upon movement of the handle, the engaging mom-- ber 'may'be moved into engaging position, and spring meansforurging said engaging member into disenga 'ed position;

6. A sash and door lock comprising a base member having upstanding sides, a p ntle upon the baseinember between the sdes, a slotted engaging member positioned between said sides withthe pintle extending througlr'the slot therein, a handle pivoted upon saidpintle, there beinga'cam surface upon said engaging member engagea-b'le by.

a portion 'of' the handle, whereby upon' movement of the handle, the engaging member may be moved into engaging position,

and a spring disposedabout said pintle be- EDWARD J. KiNGwiim. 

